The ratio of girls to boys is 21/14 = 3/2 = 1.5 .
The ratio of boys to girls is 14/21 = 2/3 = 0.66 .
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The ration of girls to boys is 21:6To simplify this divide both numbers by 3 = 7:2
Well, isn't that just a happy little math problem! If one third of the 21 students are girls, that means two thirds are boys. To find out how many boys are in the class, you can multiply 21 by two thirds, which equals 14 boys. Just imagine all those happy little boys and girls learning together in harmony.
There are 21 boys. Boys = 30% Girls = 70% = 49 40/.7 = 70 70 - 49 = 21
21:14 21/7:14/7 3:2
21